Freescale Semiconductor Application Note : Interfacing Semiconductor Pressure Sensor to Microcomputers

The application note contains information related to instrumentation amplifiers, full scale, system, integrated circuits, instrumentation, interface, temperature, the instrument amplifier, pressure sensors, amplifier, pressure sensor, and sensors. Inside this application note we can learn information related to output pressure, conversion, differential output voltage, amplifier interface, circuit, differential output, resistors, instrumentation amplifier, signal, microcomputer, interfaces, and pressure transducer.

There are lots of info like sensor, instrumentation amplifier interfaces, application, converter, instrument amplifier, digital conversion, scale, pressure, instrument, temperature compensation, interface circuit, and output voltage are presented inside the application note. Below are taken from this application note:

The most popular silicon pressure sensors are piezoresistive bridges that produce a differential output voltage in response to pressure applied to a thin silicon diaphragm. Output voltage for these sensors is generally 25 to 50 mV full scale. Interface to microcomputers, therefore, generally involves gaining up the relatively small output voltage, performing a differential to single ended conversion, and scaling the analog signal into a range appropriate for analog to digital conversion. Alternately, the analog pressure signal can be converted to a frequency modulated 5 V waveform or 4-20 mA current loop, either of which is relatively immune to noise on long interconnect lines.

In addition, the application note contains information about input voltage, circuits, precision, the frequency output, the bridge resistors, bridge resistors, output, applications, the instrumentation amplifier, voltage, and instrumentation amplifier interface.

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